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Mechanical Engineer Contractor Jobs in Washington

M&J Engineering

Mechanical Engineer

Rockville, MD · On-site

... contractors. M&J Engineering is a leader in construction management and inspection, ITS, mechanical, electrical, wastewater, water supply, tunnel airport, port, marine/coastal, environmental ...

Stantec

Mechanical Engineer

Washington, DC · On-site

$107K - $155K/yr

... and contractor, sub-contractors, and vendors. * Participate in client contact on projects to ... Bachelor's degree or equivalent in Mechanical Engineering or Architectural Engineering with a ...

Stantec

Mechanical Engineer

Washington, DC · On-site

... and contractor, sub-contractors, and vendors. * Participate in client contact on projects to ... Bachelor's degree or equivalent in Mechanical Engineering or Architectural Engineering with a ...

Stantec

Mechanical Engineer

Annapolis, MD · On-site

$100K - $145K/yr

Our team is looking for a Mechanical Engineer with a focus in HVAC and Plumbing design. You will ... in the project, contractors, suppliers, etc. * Ability to apply logic, reasoning, and ...

Dewberry

Mechanical Engineer

Fairfax, VA · On-site

$95K - $122K/yr

... and contractors, working with architects and other clients, and working with others within the ... The Mechanical Engineer will also assist with the design and specification of controls systems ...

Dewberry

Mechanical Engineer

Fairfax, VA · On-site +1

$95K - $122K/yr

... and contractors, working with architects and other clients, and working with others within the ... The Mechanical Engineer will also assist with the design and specification of controls systems ...

National Gallery of Art

Mechanical Engineer

Washington, DC · On-site +1

$121K - $158K/yr

Providing mechanical engineering expertise and recommendations to the Head of Facilities ... Preparing the scope of work for architect and engineer (A&E) contracts and reviewing the contractor ...

Provectus, Inc.

Senior Mechanical Engineer

Merrifield, VA

$104K - $137K/yr

We are seeking a Senior Mechanical Engineer for our Falls Church, Virginia headquarters to design ... contractors, and code officials. Key Responsibilities Design HVAC, hydronic piping, central plant ...

Defense Logistics Agency

Mechanical Engineer

Arlington, VA · On-site

$143K - $187K/yr

... contractor organizations. * Serve as project manager and technical authority, providing expert guidance across all project phases on mechanical, structural, and advanced engineering requirements.

Provectus, Inc.

Senior Mechanical Engineer

Merrifield, VA · On-site

$104K - $137K/yr

We are seeking a Senior Mechanical Engineer for our Falls Church, Virginia headquarters to design ... contractors, and code officials. Key Responsibilities Design HVAC, hydronic piping, central plant ...

Bechtel

Mechanical Engineer

Reston, VA · On-site

$106K - $154K/yr

Coordinates mechanical engineering efforts in assigned areas with specialty groups, engineering disciplines, the client, vendor, contractors, construction and other functional groups​

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All JobsMechanical Engineer Contractor JobsMechanical Engineer Contractor Jobs in Washington

Mechanical Engineer Contractor information

See Washington salary details

$51.5K

$116.5K

$188.6K

How much do mechanical engineer contractor jobs pay per year?

As of Sep 2, 2026, the average yearly pay for mechanical engineer contractor in Washington is $116,519.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,300.00 and $143,300.00 per year, depending on experience, location, and employer.

What is a mechanical engineer contractor?

Mechanical Engineer Contractors are professionals who provide specialized engineering services on a contract basis rather than as permanent employees. They design, develop, and oversee the installation and maintenance of mechanical systems in various industries, such as manufacturing, construction, or energy. Contractors are typically hired for specific projects or to address temporary skill gaps within an organization. Their work may include tasks like equipment design, HVAC system planning, or process optimization. Mechanical Engineer Contractors must possess strong technical skills, adaptability, and often need to manage multiple projects simultaneously.

What are the key skills and qualifications needed to thrive as a mechanical engineer contractor?

To thrive as a Mechanical Engineer Contractor, you need a solid background in mechanical engineering principles, project management, and often a relevant engineering degree with professional licensure (such as PE). Familiarity with CAD software, simulation tools, and industry-specific codes or standards is typically required. Strong problem-solving abilities, effective communication, and adaptability set successful contractors apart. These skills ensure projects are completed accurately, efficiently, and in compliance with safety and regulatory requirements.

What are some common challenges mechanical engineer contractors face when working on multiple projects concurrently?

Mechanical Engineer Contractors often manage several projects at once, which can present challenges such as balancing competing deadlines, adapting to different client expectations, and quickly familiarizing themselves with diverse industry standards. Strong organizational skills and proactive communication are essential for keeping projects on track and ensuring quality deliverables. Additionally, contractors must be adept at quickly building rapport with new teams and stakeholders to facilitate smooth collaboration and project success.

What is the difference between Mechanical Engineer Contractor vs Mechanical Engineer?

AspectMechanical Engineer ContractorMechanical Engineer
CredentialsTypically requires a bachelor's degree in mechanical engineering and relevant certifications; contractors often hold professional engineer (PE) licenses.Requires a bachelor's degree in mechanical engineering; licensure may be preferred or required for certain roles.
Work EnvironmentUsually works on temporary projects, often on-site at client locations, with flexible or contract-based employment.Works in permanent positions within companies, engineering firms, or manufacturing environments.
Employer & Industry UsageHired by companies or clients for specific projects; common in consulting, construction, and manufacturing sectors.Employed directly by organizations or firms as full-time staff.

In summary, Mechanical Engineer Contractors are typically hired for temporary, project-based work and often hold specific certifications, while Mechanical Engineers are usually employed full-time within organizations. Both roles require similar educational backgrounds but differ mainly in employment type and work setting.

Can mechanical engineers work as contractors?

Yes, mechanical engineers can work as contractors, often providing specialized engineering services on a project basis. Contract roles may require relevant certifications, technical skills, and the ability to work independently or with a team in various environments. Many contractors work on short-term projects, offering flexibility and expertise to employers without full-time employment commitments.

What are popular job titles related to Mechanical Engineer Contractor jobs in Washington?

For Mechanical Engineer Contractor jobs in Washington, the most frequently searched job titles are:

What job categories do people searching Mechanical Engineer Contractor jobs in Washington look for?

The top searched job categories for Mechanical Engineer Contractor jobs in Washington are:

What cities in Washington are hiring for Mechanical Engineer Contractor jobs?

Cities in Washington with the most Mechanical Engineer Contractor job openings:

Mechanical Engineer Contractor jobs near you
Infographic showing various Mechanical Engineer Contractor job openings in Washington as of August 2026, with employment types broken down into 100% Full Time. Highlights an 56% In-person, and 44% Remote job distribution, with an average salary of $116,519 per year, or $56 per hour.

Mechanical Engineer

M&J Engineering

Rockville, MD • On-site

Full-time

Medical, Dental, Vision, Life, Retirement

Re-posted 8 days ago

Job description

Overview

M&J Engineering, D.P.C. (M&J) is a quality provider of multi-discipline consulting services with over 300 employees. Since its inception in 2004, M&J has grown into diversified provider of engineering, construction management, construction inspection, technology, and environmental services to a broad range of clients, including federal, state and city/local agencies, private owners, architects, engineers and contractors.

M&J Engineering is a leader in construction management and inspection, ITS, mechanical, electrical, wastewater, water supply, tunnel airport, port, marine/coastal, environmental engineering, and design-build services for both new infrastructure projects and renovations.

M&J bases its employment and personnel decisions on the principles of Equal Employment Opportunity, with the intent to further the Company's Affirmative Action commitment. M&J does not discriminate on the basis of race, color, religion, national origin, sex, sexual orientation, pregnancy, gender identity or expression, age, disability, genetic information, marital status, citizenship status, employment status, veteran or military status, or any other category protected by law. Our Company vigorously pursues opportunities to recruit and develop job candidates who have the desire and potential for becoming qualified employees through our Affirmative Action Plan.

M&J is seeking a Mechanical Engineer. This role is essential to ensuring the safety, reliability, and compliance of Washington Metropolitan Area Transit Authority (WMATA)'s structural assets. Candidate will work in the field conducting inspections, documenting deficiencies, and coordinating with engineering and maintenance teams to provide support in the area of mechanical engineering.

Responsibilities
  • Collaborate with ELES staff to develop standard operating procedures (SOPs) for elevator and escalator modernization.
  • Create and manage work plans for elevator and escalator modernization projects.
  • Design and implement a data-driven predictive maintenance program in partnership with ELES staff.
  • Develop assessment criteria for WMATA's vertical transportation assets.
  • Conduct comprehensive condition assessments of vertical transportation equipment and prepare detailed reports of findings.
  • Coordinate with WMATA personnel to ensure successful completion of assigned tasks.
  • Prepare materials lists and identify action items required to complete assigned work.
  • Respond to WMATA inquiries related to project scope.
  • Provide draft documents to stakeholders for review and incorporate feedback prior to finalization.
  • Address WMATA comments and revisions on draft documents.
  • Attend all required meetings.
  • Perform other duties as assigned by the WMATA Task Manager.
  • All other duties as assigned.
Qualifications
  • A minimum of a bachelor's degree in engineering, project management, construction management, or related field.
  • A minimum of 10 years' demonstrable experience managing large, complex projects that include mechanical, structural, or electrical infrastructure.
  • Registration as a Professional Engineer in one of the signatory jurisdictions of the WMATA compact, i.e., District of Columbia, Maryland, or Virginia; and
  • Project Management Professional (PMP), Certified Associate in Project Management (CAPM), orCertified Supply Chain Manager (CSCM) and/or Certified Construction Manager (CCM)certification.
Benefits

M&J is a leader in providing quality engineering consulting services to a diverse and exciting client base.  We attract experienced professionals who understand proactive client service, safety, risk management and loss prevention practices, quality control, teamwork, and the development of younger staff.  We seek employees who enjoy their work, desire continuous improvement, and want to contribute to the vision and growth of a quality, employee-owned, professional firm. To all full-time employees we provide a comprehensive package of benefits, including medical, dental and eye insurance, 401(k) retirement plan, life insurance, etc. Salary will depend on experience and credentials.

Employment Type: OTHER

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